diff options
author | 2020-05-25 16:42:42 +0200 | |
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committer | 2020-05-25 16:42:57 +0200 | |
commit | 22513fb6fe281f5ccb75aaddb6417a12a66c313d (patch) | |
tree | 3cf84032cc6482d685a8dbb57e015bd17c7f7fdc /src/emu/emumem_hem.h | |
parent | e42c2d2874cf9c1092c01ab5ce9ef997d465ce25 (diff) |
emumem: A little more speedup. cache and specific change syntax, and are not pointers anymore [O. Galibert]
The last(?) two changes are:
- Add a template parameter to everything (theoretically the address
space width, in practice a level derived from it to keep as much
compatibility between widths as possible) so that the shift size
becomes a constant.
- Change the syntax of declaring and initializing the caches and
specifics so that they're embedded in the owner device. Solves
lifetime issues and also removes one indirection (looking up the base
dispatch pointer through the cache/specific pointer).
Diffstat (limited to 'src/emu/emumem_hem.h')
-rw-r--r-- | src/emu/emumem_hem.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/emu/emumem_hem.h b/src/emu/emumem_hem.h index 184c752625c..1d076ebc51b 100644 --- a/src/emu/emumem_hem.h +++ b/src/emu/emumem_hem.h @@ -5,7 +5,7 @@ // Accesses fixed memory (non-banked rom or ram) -template<int Width, int AddrShift, int Endian> class handler_entry_read_memory : public handler_entry_read_address<Width, AddrShift, Endian> +template<int Width, int AddrShift, endianness_t Endian> class handler_entry_read_memory : public handler_entry_read_address<Width, AddrShift, Endian> { public: using uX = typename emu::detail::handler_entry_size<Width>::uX; @@ -14,7 +14,7 @@ public: handler_entry_read_memory(address_space *space) : handler_entry_read_address<Width, AddrShift, Endian>(space, 0) {} ~handler_entry_read_memory() = default; - uX read(offs_t offset, uX mem_mask) override; + uX read(offs_t offset, uX mem_mask) const override; void *get_ptr(offs_t offset) const override; inline void set_base(uX *base) { m_base = base; } @@ -25,7 +25,7 @@ private: uX *m_base; }; -template<int Width, int AddrShift, int Endian> class handler_entry_write_memory : public handler_entry_write_address<Width, AddrShift, Endian> +template<int Width, int AddrShift, endianness_t Endian> class handler_entry_write_memory : public handler_entry_write_address<Width, AddrShift, Endian> { public: using uX = typename emu::detail::handler_entry_size<Width>::uX; @@ -34,7 +34,7 @@ public: handler_entry_write_memory(address_space *space) : handler_entry_write_address<Width, AddrShift, Endian>(space, 0) {} ~handler_entry_write_memory() = default; - void write(offs_t offset, uX data, uX mem_mask) override; + void write(offs_t offset, uX data, uX mem_mask) const override; void *get_ptr(offs_t offset) const override; inline void set_base(uX *base) { m_base = base; } @@ -50,7 +50,7 @@ private: // Accesses banked memory, associated to a memory_bank -template<int Width, int AddrShift, int Endian> class handler_entry_read_memory_bank : public handler_entry_read_address<Width, AddrShift, Endian> +template<int Width, int AddrShift, endianness_t Endian> class handler_entry_read_memory_bank : public handler_entry_read_address<Width, AddrShift, Endian> { public: using uX = typename emu::detail::handler_entry_size<Width>::uX; @@ -59,7 +59,7 @@ public: handler_entry_read_memory_bank(address_space *space, memory_bank &bank) : handler_entry_read_address<Width, AddrShift, Endian>(space, 0), m_bank(bank) {} ~handler_entry_read_memory_bank() = default; - uX read(offs_t offset, uX mem_mask) override; + uX read(offs_t offset, uX mem_mask) const override; void *get_ptr(offs_t offset) const override; std::string name() const override; @@ -68,7 +68,7 @@ private: memory_bank &m_bank; }; -template<int Width, int AddrShift, int Endian> class handler_entry_write_memory_bank : public handler_entry_write_address<Width, AddrShift, Endian> +template<int Width, int AddrShift, endianness_t Endian> class handler_entry_write_memory_bank : public handler_entry_write_address<Width, AddrShift, Endian> { public: using uX = typename emu::detail::handler_entry_size<Width>::uX; @@ -77,7 +77,7 @@ public: handler_entry_write_memory_bank(address_space *space, memory_bank &bank) : handler_entry_write_address<Width, AddrShift, Endian>(space, 0), m_bank(bank) {} ~handler_entry_write_memory_bank() = default; - void write(offs_t offset, uX data, uX mem_mask) override; + void write(offs_t offset, uX data, uX mem_mask) const override; void *get_ptr(offs_t offset) const override; std::string name() const override; |